So far on this motor I have replaced:<br />prop shaft seal<br />water pump base seal<br />water pump and all gaskets.<br />Still have water in oil so I am in process of replacing shift shaft seal. I have recently treated this motor with seafoam. <br />When I pulled the lower unit this time I...
I read in another post about decarbing a motor with seafoam. What is seafoam? Can you damage a motor by using it. In this particular post it said that they gained a 5 psi per cyl. I have a 63 merc 650 and compression ranges from 130 to 115. Could this even up the compression?
Just bought boat. Ran it twice. Pulled lower unit and replaced impeller. Motor runs great. Thought it would be a great idea to replace gear lube. Removed drain screw and vent and all I got was a few drops of water :( Filled with lube and noticed that the seal behind the prop is blown out. My...
